气泡管结晶提纯萘新工艺

In this paper a technology of parametric pumping fractional crystallization and a crystallizer with a slug flow vertical bubble tube are presented. This technology and crystallizer are applied to the refining of naphthalene. The purity naphthalene obtained is over 99％ and collection efficiency is over 92.5％．

用参数泵分步结晶制取精萘的新工艺及放大

采用参数泵分步结晶工艺，开发了直立弹状流气泡管结晶器，由工业萘提纯制取精萘。实验室研究和放大试验的研究表明，产品纯度大于９９％，收率大于９２．５％。弹状气泡强化了传热和传质过程，流体的均布是放大过程的关键。